ABL Bio has signed a broad therapeutic development deal with Eli Lilly worth up to $2.6 billion, marking a new chapter for the Korean biotech.Previously known for shuttle technology to enable therapeutics to cross the blood-brain-barrier, ABL has neurology-focused partnerships with Sanofi and GSK. Now, the drugmaker is widening the scope of its bispecific antibody platform, dubbed Grabody, and the validation from its deal with Lilly — as well as the US pharma's cash — will help it explore more disease areas. The tie-up with Lilly also follows ABL's push into antibody-drug conjugates (ADCs) via its backing of US biotech NEOK Bio, which emerged from stealth earlier this month with $75-million in funding.Expansion underwayIn addition to its Grabody-B shuttle technology, ABL's platform also includes Grabody-T for modular bispecific T-cell engager development and Grabody-I for bispecifics that modulate the immune system, both geared towards oncology.Under the multi-programme deal, ABL will receive $40 million upfront to develop multiple therapeutics across modalities and disease areas with Lilly. The Korean firm is eligible for up to $2.56 billion in development, regulatory and commercial milestones, plus tiered royalties. Lilly also took a stake in the company, buying 175,079 common shares at KRW 125,900 per share for a total investment of KRW 22 billion ($15 million).With the funds, ABL plans to expand the reach of its Grabody technology into obesity and muscle diseases.